The Department of Child and Family Services had removed the children from their biological parents and placed them in the protective custody of their maternal grandmother.

The children's parents, Rose Chairez, and Enrique Felix, went to Chairez's mother's home on Friday despite orders that they were only allowed to see the children during scheduled visitations at DCFS or in the presence of a caseworker.

Police said Felix was last seen driving away with Chairez and the four children in the 1400 block of North Indiana Street.

He was last seen driving a newer dark or black PT Cruiser, which was missing the right rear hubcap. The license plate number was written in black lettering on paper, police said.

Felix, 28, is described as Hispanic with black hair and brown eyes, standing 5 feet 10 inches tall and weighing around 220 pounds.

Chairez is described as Hispanic with red hair and brown eyes, 5 feet 2 inches tall and weighing around 150 pounds.

The children were identified as 1-year-old twins Janet Felix and Veronica Felix, 5-year-old Justin Felix and 7-year-old Enrique Felix.